Tubular-magazine gun.



T. G. JOHNSON.

TUBULAR MAGAZINE GUN.

APPLIOATION FILED DEC. 29, 1909.

2 SHEBTSSHEET 1.

' Patented June 14, 1910 To all'whom it may concern:

UNITED STATES ATE oriron.

THOMAS C. JOHNSON, OF NEW HAVEN, CONNECTICUT, A SSIGNOB TO WINCHESTER RE- PEATING-ARMS 00., OF NEW HAVEN, CONNECTICUT, A CORPORATION.

TUBULAR-MAGAZINE GUN.

Application filed December 29, 1909. Serial No. 535,408.

Be it known that I, THOMAS C. J oHNsoN,

a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented a newand useful Improvement in. Tubular- Magazine' Guns; and I do hereby declare the following, when taken in connection with the. accompanying drawings and the.

letters'of reference-marked thereon, to be a full, clear, and .exact description of the same, and which said drawingsconstitute part of this specification, and represent, in

Figure 1 a broken iew in vertical longitudinal'section of a gun constructed in accordance' with my invention, the pivotal cartridge cut-off being shown in its cut-ofi' position. Fig. 2 a corresponding view showing the cut-off in its retired position. Fig.

3 a view in vertical transverse section on the line w-b of Fig.1. Fig. 4 a detachedview in inside elevation of the cutoff. Fig. 5 a detached-plan view thereof. Fig. 6 abroken View in inside elevation of the'rear end of 'theactlon-bar. Flg. 7 a'broken new n ver tical section on the line 0d of Fig. 1, show in the entrance of the flange 28 of the outo 2 into the vertical cut 29 in the'forward end ofthe re'ceiver. Fig. 8 a broken view of the un in horizontal section on the plane of the ower edge ofthe action-bar, to show how the cartridge cut-ofl" is 'mounted and held in place- My inventionrelates to an improvement in tubular magazine shot guns, the object being to provide such guns with a simple, compact, durable and reliable cartridge cutoff constructed with'particular reference to being positively operated in both directions.

With'these ends in view, my invention cons1sts 1n certam details of construction and combinations of parts as will be hereinafter described and pointed out in the claims. In carrying out my invention as herein shown, I employ a cartridge cut-off 2 in the form of a lever fulcrumed about midway of its length on an outwardly projecting trunnion 3 entering a suitable trunnion-hole not shown, but located in the inner face of the left hand wall of the gun-frame or receiver 4 which is formed with a crowning solid top 5 and provided in its right handwall wlth a lateral ejection-opening 6 and made open at the; bottom to provide a feeding opening 7. The rear end'of the cutoff 2 s upturned and forms a lifting-cam 8 adapted to be engaged by the extreme rear end 9 of the action-bar 10 during the rear ward movement thereof, the said action-bar being connected at its forward end with a sliding handle 11 which is mounted for sliding movement back and forth upon the tubular magazine 12 which is furnished as usual with a follower 13 and helical follower-spring 14. I may here add that the action-bar 10 and cartridge cut-off 2 are constructed, arranged and timed so that the rear end 9 of the bar 10 engages with the lifting-cam 8 of the cut-off 2 so as to positively rock the same on its trunnion 3 and cause the curved cut-off nose 15 at the forward lower corner of the cut-off to be positively liftedin front of the mouth of the ance cut 19 formed in the lower inner edge 1 of the action-bar 10, the rear end of the out 19 terminating in a cam-surface 20 which,

inthe forward movement of the action-bar, engages with the cam 18 and positively depresses the forward end of the cut-off 2 and hence the cut-off nose 15 which at this time moves entirely below the lower portion of the mouth of the tubular magazine, and thus permits the rearmost cartridge therein to be expelled therefrom and moved upon the spoon-like forward end 16 of the cartridgecarrier 17 as shown in Fig. 2.

The parts just described are constructed and timed so that the. forward end of the cut ofi' 2 is not depressed until after the comsame is expelled under the power of the follower-spring 14.

The breech-closure 22is operated by the action-bar 10.which for this purpose is provided with an inwardly projecting lug 25 entering a cam-path, not shown, but formed in the left hand wall of the breech-closure.

. The pivotal carrier 17 swings upon a pivot.

26 and is formed at its rear end with an; operating arm 27 the use of which forms no. part of my present invention, having been fully disclosed in my concurrently pending application filed November 27,1909, Serial No. 530,081. i

As herein shown'I provide for, conven ie'ntly and reliably assembling thecut-ofi2 by its provision at its forward end with a vertically arranged bladelike vassembling flange 28 which-enters a vertical cut 29 in of the gun engages,

the forward end of the receiver, while the trunnion 3 into a trunnion-hole provided for it, but, not shown, in the inner face of the left hand wall of the gun-frame. The guard, of which the part 31 is a part, is now put in place, whereby the retainin -lug 30, toward the rear end of the cut-0%, is en- ,gaged for confining the inner-end of the cut-off against lateral displacement.

The construction just described provides for holding the cutofl in lace without the use of pins or screws, an permits it to bev assembled and dismounted without anytools and with the utmost readiness."

It will be'understood from the foregoing that my improvement provides for the positive operation in both directions of the cutoff directly by the action-bar as the same is moved forward and back in correspondence with the movement of the action handle. Thus, after the action-bar has operated to' move the breech-closure to the hmit of its forward excursion and lifted its rear end into its locked position, the action-barthen coacts with the depressin -cam of the cartridge cut-ofi' 2 to positive ydepress the cutoff nose 15 into its retired position in which it permits the expulsion, of the rearmost cartridge from the tubular magazine to be begun. On the other hand, during the rearward movement. of the action-bar for the rearward excursion of the breech-closure, the

- rear end 9 of the bar en ges with the lift ing-cam 8 at the rear en of the cut-off, and positively acts upon the said lifting-cam so as to lift'the nose 15 of the cut-off .2 up

against the body of the cartridge being expelled, and therefore into position to engage wlth the head of the next succeeding cartridge and prevent the expulsion of any poraction-barhas again been moved forward so as to lock the breech-closure in its closed position directly after which it positivelyccoacts with the depressing-cam l8of the cut-off so I as to release what .is now the rearmost car-o be begun,

To recelve the action-bar 10, the inner face receiver 4 is formed with a horizontal groove the reception of the cut-off 2, as shown 'in' Fig. 3 of the drawings.

claim e nation with thegun-frame or receiver thereof, of a tubular magazine, a sliding handle mounted thereupon, abreech-closure, anaction-bar connected at its forward end with the said handle. and at its rear end with the said breech-closure and moving back and forth in a groove formed'in one of the side walls of the n-frame orreceiver, and a pivotal cartri ge I 7 formed in the same wall of theor receiver is the 'said -frame gaging the said cut-ofl for positively lifting .the forward end thereof into .its cut-qfi position. 7

2.. In a-tubular magazine gun, the combination with the gun-frameor receiver thereof, of a tubular magazine, as 'ding handle mounted thereupon, a breech-closure, an action-bar connected atits forward end with the said handle and at itsrear end. with the said breech-closure and-.slidin in -a' groove formed in one of theside wa s ofthe said gun-frame or receiver," and a pivotal car- .the same .wall' of-the gim-frame or receiver 'as the saidgroove and situated at a below the same,'the"forward end 0 the said cut-off being directly en aged by the said action-bar'for positively epressin the cut-off into its retired position in whic the lar magazine.. v e,

3. In a tub lar magazine, the combination with the gun-frame or'receiverthereof, of

edtherenpon, a breechclosure, an action-bar connected 'at its forward end with the said handle and at, its rear end with the said breech-closure and sliding in a groove gun-frame 'or receiver, and a pivotal cartridge cut-off located in a recess formed in the same wall of the gun-frame or receiver as the said groove and situated below the tion thereof from the magazine until the of the left hand wall of the gun-frame or 1'. 'In .a tubular magazine I gun, the combi-.

I move an situated below the same, said actlon-bar directly entridge cut-offlocat'ed in a recess formed inv a tubular magazine, a sliding handle mount;-

tridge and permit the expulsion thereof to '32 below which is located .a' recess' 33 for cut-elf located in a recess" oint cartridges are free to befed out of the tub'u-v i I formed in one of the side walls of the said with the gunname or receiver thereof, of .a pivotal cartridge cut-oflf having a trunnion between its ends and located in a recess formed for it in one of the side Walls of the said-g un-frame or receiver and having its said ends engaged on its side opposite its said trunnion, by ortions of the 'said frame,

whereby the cut 0 is held in place.

' 5. In a tubular magazine gun, the combination with the gun-frame or receiver thereof, of a tubular magazine, a sliding handle mounted thereupon, a breech-closure, an action-bar having; its forward end connected with the said handle and its rear end with the said breech-closure and slidin in a groove in one ,of the side walls of t e said gun-frame or receiver, and a pivotal cartridge cut-ofl' located in a recess formed in the same wail of the said gun-frame or receiver .as the said groove, and having its forward end provided with a retaining specification in flange entering a vertical out in the said gun= frame or recelver, whereby the forward end of the cutoff fist-held against lateral dis? placement.

6, In a tubular magazine gun, the combi nation with the gun-frame or receiver there of, of'a tubular magazine, a sliding handle mounted thereon, a breech-closure, an action-bar'conn'ected at its forward end with the said handle and at its rear end with the said breech-closure, sliding in a groove formed in one of the side walls of the gunframe or receiver, and having a long clearance cut formed in its mner face; and a pivotal cartridge cut-01f located in a recess formed in the same wall of the said gunframe or receiver as' the said groove and situated at a point below the same and hav Y i l ing its forward end entered into the said i v clearance cut therear end of which engages with the said forward end-ofthe cut-off and depresses the same.

.In testimony whereof, I have signed this the presence of two subscrib THOMAS C. JOHNSON.

ing witnesses.

Witnesses:

" FRANK A.'PAUL,

DANIEL H. VEADER. 

